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WM8728 데이터시트(PDF) 4 Page - Wolfson Microelectronics plc

부품명 WM8728
상세설명  24-bit, 192kHz Stereo DAC with Volume Control and DSD Support
PDF  28 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8728 데이터시트(HTML) 4 Page - Wolfson Microelectronics plc

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WM8728
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WOLFSON MICROELECTRONICS LTD
PP Rev 1.2 April 2001
4
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital supply range
DVDD
3.0
5.5
V
Analogue supply range
AVDD
3.0
5.5
V
Ground
AGND, DGND
0
V
Difference DGND to AGND
-0.3
0
+0.3
V
Analogue supply current
AVDD = 5V
19
mA
Digital supply current
DVDD = 5V
8
mA
Analogue supply current
AVDD = 3.3V
18
mA
Digital supply current
DVDD = 3.3V
4
mA
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD, DVDD = 5V, AGND = 0V, DGND = 0V, TA = +25
oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels (TTL Levels)
Input LOW level
VIL
0.8
V
Input HIGH level
VIH
2.0
V
Output LOW
VOL
IOL = 1mA
AGND + 0.3V
V
Output HIGH
VOH
IOH = 1mA
AVDD – 0.3V
V
Analogue Reference Levels
Reference voltage
VMID
(VREFP -
VREFN)/2 -
50mV
(VREFP -
VREFN)/2
(VREFP -
VREFN)/2 +
50mV
V
Potential divider resistance
RVMID
12k
ohms
DAC Output (Load = 10k ohms. 50pF)
0dBFs Full scale output voltage
At DAC outputs
1.1 x
AVDD/5
Vrms
SNR (Note 1,2,3)
A-weighted,
@ fs = 48kHz
100
106
dB
SNR (Note 1,2,3)
A-weighted
@ fs = 96kHz
106
dB
SNR (Note 1,2,3)
A-weighted
@ fs = 192kHz
106
dB
SNR (Note 1,2,3)
A-weighted,
@ fs = 48kHz
AVDD, DVDD = 3.3V
105
dB
SNR (Note 1,2,3)
A-weighted
@ fs = 96kHz
AVDD, DVDD = 3.3V
103
dB
SNR (Note 1,2,3)
Non ‘A’ weighted @ fs
= 48kHz
106
dB
THD (Note 1,2,3)
1kHz, 0dBFs
-97
dB
THD+N (Dynamic range, Note 2)
1kHz, -60dBFs
100
106
dB
DAC channel separation
100
dB
Analogue Output Levels
Load = 10k Ohms,
0dBFS
1.1
VRMS
Output level
Load = 10k Ohms,
0dBFS,
(AVDD = 3.3V)
0.726
VRMS
Gain mismatch
channel-to-channel
±1
%FSR



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